fix: Resolve Dart type inference errors and update Android build configuration for Gradle 8.14

Type Annotation Fixes:
- fireNotificationList.dart: Added DeleteFireNotificationFunction and TapFireNotificationFunction types to _buildRow and _buildSavedFireNotifications parameters
- homePage.dart: Added Object type to catchError handler parameters
- redux/appReducer.dart: Added dynamic type annotation to action parameter
- redux/fetchDataMiddleware.dart: Added explicit type annotations and improved type casting
- redux/reducers.dart: Added dynamic type annotation to action parameter
- redux/userReducer.dart: Added dynamic type annotation to action parameter

Android Build Configuration Updates:
- Updated compileSdkVersion and targetSdkVersion from 34 to 36 to match plugin requirements
- Moved plugins {} block to first position (Gradle 8.14 requirement)
- Added dev.flutter.flutter-gradle-plugin to plugins block for modern Flutter integration
- Removed deprecated useProguard setting, replaced with shrinkResources
- Disabled Jetifier (android.enableJetifier=false) to improve build performance
- Increased JVM heap allocation to 4096M for large project compilation
- Added Kotlin language version 1.8 override for plugin compatibility
- Added ProGuard rules to exclude optional Google Play Core classes

Build Results:
- ✅ APK builds successfully (146MB debug APK)
- ✅ Zero type inference errors detected by dart analyze
- ✅ Kotlin compilation passes
- ✅ R8 minification configured correctly
- ✅ 301 remaining issues are all INFO-level style suggestions (non-blocking)

android/app/build.gradle

@@ -1,3 +1,9 @@
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id 'dev.flutter.flutter-gradle-plugin'
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,27 +12,12 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new FileNotFoundException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
-plugins {
-    id 'com.android.application'
-    id 'kotlin-android'
-}
-
 def keystorePropertiesFile = rootProject.file("key.properties")
 def keystoreProperties = new Properties()
 keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
 
-// Load Flutter's Gradle plugin
-if (flutterRoot != null) {
-    apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-}
-
 android {
-    compileSdkVersion 34
+    compileSdkVersion 36
     namespace "org.comunes.fires"
 
     lintOptions {
@@ -37,7 +28,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "org.comunes.fires"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 34
+        targetSdkVersion 36
         versionCode 9
         versionName "1.9"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -57,7 +48,7 @@ android {
             signingConfig signingConfigs.release
 
             minifyEnabled true
-            useProguard true
+            shrinkResources true
 
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }

android/app/proguard-rules.pro

@@ -14,3 +14,6 @@
 -keepnames class org.ietf.jgss.** { *; }
 -dontwarn org.apache.**
 -dontwarn org.w3c.dom.**
+
+# Google Play Core libraries - optional features
+-dontwarn com.google.android.play.core.**